/* BitBest — Premium UI Layer (v2) */

:root {
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.18);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --header-height: 72px;
}

/* ── Aurora background ── */
.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.aurora-bg::before,
.aurora-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: auroraDrift 18s ease-in-out infinite alternate;
}
.aurora-bg::before {
  width: 55vw;
  height: 55vw;
  top: -20%;
  left: -15%;
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan, #00d4ff) 40%, transparent), transparent 70%);
}
.aurora-bg::after {
  width: 45vw;
  height: 45vw;
  bottom: -15%;
  right: -10%;
  background: radial-gradient(circle, color-mix(in srgb, var(--purple, #a855f7) 35%, transparent), transparent 70%);
  animation-delay: -9s;
}
@keyframes auroraDrift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(4%, 6%) scale(1.08); }
}
html[data-theme="vivid"] .aurora-bg::before {
  background: radial-gradient(circle, rgba(255, 128, 0, 0.18), transparent 70%);
}
html[data-theme="vivid"] .aurora-bg::after {
  background: radial-gradient(circle, rgba(128, 255, 0, 0.14), transparent 70%);
}

/* ── Scroll-reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Premium header ── */
.header {
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.header.scrolled {
  background: color-mix(in srgb, var(--header-bg, rgba(5,8,16,0.95)) 92%, transparent) !important;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
  border-bottom-color: color-mix(in srgb, var(--cyan) 25%, var(--border)) !important;
}
.header-inner {
  height: var(--header-height);
}
.logo {
  transition: transform 0.25s var(--ease-out);
}
.logo:hover {
  transform: translateY(-1px);
}
.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: color-mix(in srgb, var(--cyan) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--cyan) 25%, transparent);
  transition: box-shadow 0.3s ease;
}
.logo:hover .logo-icon {
  box-shadow: 0 0 20px color-mix(in srgb, var(--cyan) 30%, transparent);
}
.nav a {
  position: relative;
  padding: 8px 0;
  font-weight: 600;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: 2px;
  transition: width 0.3s var(--ease-out);
}
.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}
.menu-toggle {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 10px;
  transition: background 0.2s ease;
}
.menu-toggle:hover {
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
}
.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.menu-toggle span {
  transition: transform 0.3s ease, opacity 0.2s ease;
  border-radius: 2px;
}
body.nav-open {
  overflow: hidden;
}

/* ── Hero enhancements ── */
.hero {
  position: relative;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-title {
  letter-spacing: -0.02em;
}
.stat-card {
  border-radius: var(--radius-md) !important;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 8%, transparent), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--cyan) 40%, var(--border)) !important;
  box-shadow: 0 12px 40px color-mix(in srgb, var(--cyan) 15%, transparent);
}
.stat-card:hover::before {
  opacity: 1;
}
.bot-panel {
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-lg), 0 0 60px color-mix(in srgb, var(--cyan) 8%, transparent) !important;
  transition: transform 0.4s var(--ease-out);
}
.bot-panel:hover {
  transform: translateY(-6px);
}

/* Features strip */
.features-strip {
  position: relative;
  z-index: 2;
  padding: 0 0 40px;
  margin-top: -20px;
}
.features-strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.feature-pill {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: color-mix(in srgb, var(--bg-card) 90%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.feature-pill:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--cyan) 35%, var(--border));
}
.feature-pill-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--cyan) 14%, transparent);
  color: var(--cyan);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.feature-pill strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.feature-pill span {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Section cards */
.tier-card,
.step-card,
.commission-card {
  border-radius: var(--radius-md) !important;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s ease, border-color 0.3s ease !important;
}
.tier-card:hover,
.step-card:hover {
  transform: translateY(-8px) !important;
}
.commission-card {
  text-align: center;
  padding: 28px 16px !important;
  position: relative;
  overflow: hidden;
}
.commission-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transform: scaleX(0);
  transition: transform 0.35s var(--ease-out);
}
.commission-card:hover::before {
  transform: scaleX(1);
}
.commission-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px color-mix(in srgb, var(--cyan) 12%, transparent);
}
.commission-card .comm-rate {
  font-size: 2rem !important;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.step-card {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease !important;
}
.step-card:hover {
  box-shadow: 0 16px 48px color-mix(in srgb, var(--cyan) 10%, transparent);
}
.cta-inner {
  border-radius: var(--radius-xl) !important;
}
.cta-glow {
  animation: ctaPulse 4s ease-in-out infinite;
}
@keyframes ctaPulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

/* ── Auth split layout ── */
body.auth-page {
  min-height: 100vh;
  position: relative;
}
.auth-page .aurora-bg { z-index: 0; }
.auth-split {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  z-index: 2;
}
.auth-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vw, 80px);
  background: linear-gradient(160deg,
    color-mix(in srgb, var(--bg-panel) 95%, var(--cyan) 5%),
    color-mix(in srgb, var(--bg-deep) 90%, var(--purple) 10%));
  border-right: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.auth-brand::before {
  content: '';
  position: absolute;
  top: 20%;
  right: -20%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan) 20%, transparent), transparent 70%);
  filter: blur(40px);
}
.auth-brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}
.auth-brand-logo .logo-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
}
.auth-brand-logo .logo-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.auth-brand h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}
.auth-brand-desc {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 400px;
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}
.auth-features {
  list-style: none;
  display: grid;
  gap: 16px;
  position: relative;
  z-index: 1;
}
.auth-features li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.88rem;
  color: var(--text);
}
.auth-features li i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--cyan) 12%, transparent);
  color: var(--cyan);
  font-size: 0.85rem;
  flex-shrink: 0;
}
.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(32px, 5vw, 60px);
}
.auth-form-side .auth-card {
  max-width: 440px;
  width: 100%;
  border-radius: var(--radius-xl) !important;
  padding: clamp(32px, 5vw, 48px) !important;
  border: 1px solid color-mix(in srgb, var(--border) 80%, var(--cyan) 20%) !important;
  box-shadow: var(--shadow-lg) !important;
  position: relative;
}
.auth-form-side .auth-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  border-radius: 2px;
}
.auth-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 20%, transparent), color-mix(in srgb, var(--purple) 15%, transparent));
  color: var(--cyan);
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.auth-form-side .auth-card h2 {
  font-size: 1.6rem !important;
  margin-bottom: 8px;
}

/* Input with icon */
.input-icon-wrap {
  position: relative;
}
.input-icon-wrap > i.field-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 0.9rem;
  pointer-events: none;
  z-index: 2;
  transition: color 0.2s ease;
}
.input-icon-wrap input {
  padding-left: 42px !important;
}
.input-icon-wrap:focus-within > i.field-icon {
  color: var(--cyan);
}
.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
  z-index: 2;
}
.password-toggle:hover {
  color: var(--cyan);
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
}
.input-icon-wrap.has-toggle input {
  padding-right: 44px !important;
}

/* Legacy auth-section (public pages with header) */
.auth-section:not(.auth-split *) {
  background: transparent;
}

/* ── Premium sidebar ── */
.sidebar {
  border-right: 1px solid color-mix(in srgb, var(--border) 60%, transparent) !important;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.06);
}
.sidebar-logo {
  display: flex !important;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s ease;
}
.sidebar-logo > span:not(.sidebar-logo-icon) {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.sidebar-logo small {
  display: block;
  font-size: 0.68rem;
  color: var(--text-dim);
  margin-top: 2px;
  font-weight: 500;
}
.sidebar-logo:hover {
  opacity: 0.9;
}
.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 18%, transparent), color-mix(in srgb, var(--purple) 12%, transparent));
  color: var(--cyan);
  font-size: 1rem;
  flex-shrink: 0;
}
.sidebar-nav-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  padding: 16px 16px 8px;
  opacity: 0.7;
}
.sidebar-nav a {
  position: relative;
  flex-shrink: 0;
}
.sidebar-nav a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--cyan);
  border-radius: 0 3px 3px 0;
  transition: height 0.25s var(--ease-out);
}
.sidebar-nav a.active::before,
.sidebar-nav a:hover::before {
  height: 60%;
}
.sidebar-nav a.active {
  background: color-mix(in srgb, var(--cyan) 12%, transparent) !important;
}
.sidebar-rank {
  border-radius: var(--radius-md) !important;
  border: 1px solid color-mix(in srgb, var(--rank-color, var(--cyan)) 35%, transparent) !important;
}

/* Top bar stats as pills */
.top-bar-stats {
  gap: 10px !important;
}
.mini-stat {
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-card) 80%, transparent);
  border: 1px solid var(--border);
  text-align: left !important;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.mini-stat:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--cyan) 30%, var(--border));
}
.mini-stat .value {
  font-size: 0.95rem !important;
}

/* ── Premium footer ── */
.footer {
  background: color-mix(in srgb, var(--bg-panel) 95%, transparent);
  padding: 60px 0 32px !important;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  display: block;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.85rem !important;
  line-height: 1.6;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 6px 0;
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer-col a:hover {
  color: var(--cyan);
  transform: translateX(4px);
}
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
  border: 1px solid var(--border);
  color: var(--cyan);
  transition: transform 0.2s ease, background 0.2s ease;
}
.footer-social a:hover {
  transform: translateY(-3px);
  background: color-mix(in srgb, var(--cyan) 20%, transparent);
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 0;
}

/* ── Toast upgrade ── */
.toast-msg {
  border-radius: var(--radius-md) !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-md) !important;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(20px);
  transition: opacity 0.35s ease, transform 0.35s var(--ease-out) !important;
}
.toast-msg.show {
  transform: translateY(0) !important;
}
.toast-msg::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
}

/* ── WhatsApp FAB ── */
.wa-support-fab {
  width: 56px !important;
  height: 56px !important;
  border-radius: 16px !important;
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.35) !important;
}

/* ── User message banner ── */
.user-message-banner {
  border-radius: var(--radius-md) !important;
  margin-bottom: 16px;
}

/* ── Admin body ── */
.admin-sidebar .sidebar-logo small {
  font-weight: 600;
  letter-spacing: 0.08em;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .auth-split {
    grid-template-columns: 1fr;
  }
  .auth-brand {
    display: none;
  }
  .auth-form-side {
    min-height: 100vh;
  }
  .features-strip-inner {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s var(--ease-out), opacity 0.3s ease, visibility 0.3s;
    z-index: 999;
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav a {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    width: 100%;
  }
  .nav a:hover {
    background: color-mix(in srgb, var(--cyan) 8%, transparent);
  }
  .nav a::after { display: none; }
  .header-inner .btn-primary {
    display: none;
  }
  .features-strip-inner {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Button ripple */
.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: btnRipple 0.6s ease-out;
  pointer-events: none;
}
@keyframes btnRipple {
  to { transform: scale(2.5); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .aurora-bg::before, .aurora-bg::after, .cta-glow, .wa-support-fab { animation: none !important; }
}